import decimal

import importlib

import sys

import oxrlib.config

def decimal_context(base=decimal.BasicContext):

    context = base.copy()

    context.rounding = decimal.ROUND_HALF_EVEN

    context.traps[decimal.Inexact] = False

    context.traps[decimal.Rounded] = False

    return context

def main(arglist=None, stdout=sys.stdout, stderr=sys.stderr):

    config = oxrlib.config.Configuration(arglist)

    subcmd_module = importlib.import_module('.commands.' + config.args.command, 'oxrlib')

    with decimal.localcontext(decimal_context()):

        subcmd_module.run(config, stdout, stderr)

    return 0

if __name__ == '__main__':

    exit(main())